Service, Repairs & MOT

Alternator repair in Belfast

Book an RAC Mobile Mechanic and we’ll come to you at home or work.

  • 12-months parts guarantee
  • Honest pricing
  • Exceptional customer service

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for an alternator repair?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Belfast

Our top pick

RAC Mobile Mechanic in Belfast

At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

Book an alternator repair

If your car’s battery keeps dying or electrical systems are acting up, it could be a faulty alternator. Your alternator should charge the battery properly, and if it doesn’t, you could need an alternator repair.

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.
Our mobile mechanics are friendly, honest, and backed by the RAC.
Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Book a diagnostic

For when you know something isn’t right, but you’re not sure what – our mobile mechanics are here to help.

We’ll look for any mechanical or electrical problems. If we need to, we’ll also check your car’s onboard engine management system. Depending on your car and issue, this will usually include: – Engine – Power steering – Brakes – Transmission – Exhaust system – Fuel injection system – Cooling system and air flow – Sensors
If we detect any issues, we'll talk through what needs to be repaired. We’ll give you a no-obligation quote to fix it on the spot, if we can. Or we’ll recommend a local RAC Approved Garage, and give you a full error report to take there.

And it’s not just alternator repairs that we do in Belfast

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

Try one of our RAC Approved Garages

T & K Motors

5.0/5

T&K Motors have been established for more than 30 years and are a helpful friendly garage, we carry out MOT’s, servicing and mechanical repairs on all makes and models of vehicles. We pride ourselves on offering main dealer quality of work, at independent prices, whilst ensuring that your warranty remains intact by using genuine or manufacturer approved parts, and are usually able to save you over 60% in price comparison. Our mechanics are fully qualified with many years of experience behind them in the motor industry, who take great pride in their work. Our services include the following; • All makes serviced to manufacturer's specification • MOT VOSA class 4 and 7 Car and Light Commercial • Air Conditioning re-charge and leak testing • Batteries/Alternators checked and replaced • Brakes pads and discs, brake fluid changes • Clutch replacement and repair • Cylinder Head repairs • Engine management light diagnostics • Exhausts repaired and replaced • Free vehicle health check • Fuel injection diagnostic/repair • Oil and filter changes • Suspension spring replacement specialists • Timing belts and water pump replacement • Tyres fitted, balanced and aligned • Van servicing and repairs • Free Vehicle diagnostic checks • Welding repairs to MOT standard • Warning lights diagnosed and reset * Car Service, Van Service, Commercial vehicle service
47-53 Green Street, Ayr, KA88BQ

Horner Auto Group - Ayr

5.0/5

Welcome to Horner's. You'll find us at 3/7 Peebles Street, Ayr, KA8 8DP, where our fully trained and helpful staff are on hand to assist you with anything from the straightforward Service, Repairs and MOT's to the not so straightforward such as Emergency Part Failures and Brakedown Assistance. We only use OE Quality parts which ensure best fitment, value for money and longevity which allows us to offer a no quibble warranty for 12 months or 12,000 miles (whichever is sooner). We also offer a host of payment options including Card, Cash, BACS Transfer and Payment Assist which allows you to spread the cost of your bill over 4 months interest free. We hope to see you soon.
3/7 Peebles Street, Ayr, KA88DP

Springbank Service Station

5.0/5

We are an independent family run business serving the local community for over 35 years.At Springbank Service Station you will find a filling station under the Jet brand incorporating a shop, Jet washes, vacuum and parking.We also specialise in servicing and M O T's to all makes of vehicleAll of our new and existing customers are greeted by friendly and helpful staff.
Ayr Road Irvine, Irvine, KA12 8NF

AEC Motors (Mallusk)

4.7/5

We at AEC Motors have been working on Audi and Volkswagen vehicles for over 15 years, however we have over 30 years of experience in the motor trade and have worked on most makes and models by now. We use state of the art Snap-on car diagnostic equipment which can read the fault codes in your ECU’s memory. Our fully trained technicians are then able to produce a report and inform you of any necessary repairs, to get you back on the road quickly and safely. BEST GARAGE Northern Ireland By WCFMC on its annual Awards 4 years running. We are happy to provide a free collection and delivery service for vehicles within 4 miles of our garage depending car is drivable & roadworthy. ( pickup any where in Carrickfergus & Newtownabbey Area Free ) **Note If car needs recovered there will be a recovery fee applicable**
Mallusk Road, Newtownabbey, BT36 4PX

Quinn Motor Services Ltd

4.6/5

We are a family run business specialising in all vehicle and motor services. All our team are fully qualified and have several years of experience in the industry with profession mechanics available for every job. We ensure a first-class service as we understand the troubles people must go through to get their vehicles working again. Quinn Motor Services ensure there are never any worries over the condition of your vehicle and we will have it returned to normal in no time. All our servicing jobs come at excellent prices and our service will be fully comprehensive so that there are no problems when you get back out on the road.
11A Chancellors Rd, Newry, BT358PR

Frequently asked questions about car alternator repairs

Driving with a bad alternator isn't a good idea. A failing alternator can make the battery drain fast, leading to a breakdown. Electrical parts may also stop working, which can be unsafe. It’s best to get the alternator checked and fixed or replaced as soon as you can.

When the alternator fails, the battery won't charge and will drain. This can make the car stall and prevent it from starting. Electrical parts like lights, radio, and power windows may stop working. Get help from a mechanic right away to avoid more damage.

Alternator reconditioning means fixing an old alternator by replacing worn-out parts. This can be cheaper than buying a new one, but it may not last as long as a new alternator.

The cost of an alternator varies by the type of car and the quality of the alternator. To know exactly how much, you should talk to your local mechanic.

Yes, alternators can be repaired if the damage isn't too bad. If the alternator is very damaged, it may be better to replace it.

Replacing an alternator is often worth it if the alternator is old or very damaged. A new or rebuilt alternator can work better and prevent future problems. Talk to a mechanic to help make the best choice.

Alternators usually last between 80,000 and 150,000 miles. But it can vary based on where and how you drive, and maintenance. Regular check-ups and fixing problems early can help it last longer.

Some alternator repairs or replacements may be covered under the car’s warranty, especially if the car is still new. Check your warranty details or talk to your mechanic to see if it's is covered.

They’re often not covered by standard car insurance policies because they're thought to be part of your vehicle's upkeep. But, if it's damaged in an accident, it might be covered.

You need an alternator replacement when it's very damaged or has worn-out parts that can't be fixed. If it's not keeping the battery charged or causes electrical issues, you'll need to replace it.